Droptica creates dedicated modules for drupal for years.

Currently, we create modules for drupal version 7 and 8. Our
modules make our clients' sites and application do exactly
what the client needs, not almost exactly what the client
needs. "Almost" makes all the difference :)

Drupal is a powerful system.

Thanks to a large number of free modules, its
capabilities are becoming even greater. However, there
are business processes appearing that cannot be handled
with free modules.